Recollections from Elementary Quantum Physics

Christian Duval

These notes merely intend to memorialize Souriau's overlooked achievements regarding geo\-metric quantization of Poincaré-elementary symplectic systems. Restricting attention to his model of massless, spin-$\half$, particles, we faithfully rephrase and expound here Sections (18.82)--(18.96) & (19.122)--(19.134) of his book \cite{SSD} edited in 1969. Missing details about the use of a preferred Poincaré-invariant polarizer are provided for completeness.

James D. Macomber

Kavan Kishore Modi

These are my recollections of working with George Sudarshan from 2002 to 2008 when I was a PhD student in his group. During these years I learnt a lot of physics and also was a witness to some remarkable occurrences.

Enrico Fermi

E. Cartmell, GERALD W. A. FOWLES

James B. Hartle

Brief recollections of how the author interacted with Steve Weinberg over issues in quantum mevhanics